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Striped and spotted cucumber beetles can cause serious losses in cucumbers, muskmelons, and watermelons in Kentucky. Cucumber beetles are a major concern to muskmelon and ... The spotted cucumber beetle (also known as the southern corn rootworm), also 1/4 inch long, is yellow-green with 12 black spots on its back.
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www.ca.uky.edu/entomology/entfacts/ef311.asp
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They become active early in the spring when temperatures begin to go above 50°F. Spotted cucumber beetles do not overwinter in northern areas but migrate in from southern states each year, arriving around June. In the southern states, spotted cucumber beetles emerge two to four weeks after the striped cucumber beetle.
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www.ghorganics.com/CucumberBeetles.htm
www.ghorganics.com/CucumberBeetles.htm
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The striped cucumber beetle, typically the most common in New York, feeds primarily on cucurbits, whereas the spotted cucumber beetle has a much wider range of host plants. The immature spotted cucumber beetle is called the southern corn rootworm because it feeds on roots of corn.
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vegetablemdonline.ppath.cornell.edu/factsheets/Cucurbit...
vegetablemdonline.ppath.cornell.edu/factsheets/Cucurbit_Beetles.htm
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Refer also to Cucumber Beetles, Corn Rootworms, and Bacterial Wilt in Cucurbit factsheet ... ; Bacteria overwinter in the stripped and spotted cucumber beetles. Beetles usually appear when plants emerge in spring.
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vegetablemdonline.ppath.cornell.edu/PhotoPages/Cucurbit...
vegetablemdonline.ppath.cornell.edu/PhotoPages/Cucurbit/BactWiltCyclePoster/BWCyclePoster2-3.htm
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The western spotted cucumber beetle, Diabrotica undecimpunctata, is commonly found feeding on ornamental plants. It is rarely in such large numbers that it must be controlled. When large populations do appear they can cause leaf damage and can be found feeding on terminals of shade trees, potentially causing loss.
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oregonstate.edu/dept/nurspest/western_spotted_cucumber_...
oregonstate.edu/dept/nurspest/western_spotted_cucumber_beetle.htm
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; Spotted cucumber beetle, Diabrotica undecimpunctata howardi Barber; Striped cucumber beetle, Acalymma vittata (Fabricius), Chrysomelidae, COLEOPTERA ... Damage - Striped and spotted cucumber beetle adults feed on the foliage and stems of cucurbits all season long. They often girdle stems by gnawing on the tender shoots...
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ipm.ncsu.edu/AG295/html/cucumber_beetles.htm
ipm.ncsu.edu/AG295/html/cucumber_beetles.htm
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Spotted Cucumber Beetle; (Diabrotica undecimpunctata howardi) - Life Cycl ... Click for larger image ... Damage inflicted by spotted cucumber beetle on cucurbits...
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www.nysaes.cornell.edu/ent/factsheets/pests/spcb.html
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Spotted Cucumber Beetle - Damage to Cucurbit ... Both adults and larvae of the spotted cucumber beetle have chewing mouthparts. Because beetles congregate in large numbers on newly emerging cucumber, melon, pumpkin, and squash plants, they may do severe feeding damage in a very short time - almost overnight.
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www.nysaes.cornell.edu/ent/factsheets/damage/spcb_cucur...
www.nysaes.cornell.edu/ent/factsheets/damage/spcb_cucurbits.html
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This spotted cucumber beetle was arrested while strolling on our window at home, in Bloomington, Indiana. When we saw it we were excited because we thought we discovered a different kind of ladybug!
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www.cogsci.indiana.edu/farg/harry/bio/zoo/cucumbtl.htm
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